7125006539 has 16 divisors (see below), whose sum is σ = 8558949888. Its totient is φ = 5798962752.

The previous prime is 7125006523. The next prime is 7125006571. The reversal of 7125006539 is 9356005217.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7125006539 - 2⁴ = 7125006523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7125006739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139457 + ... + 183570.

It is an arithmetic number, because the mean of its divisors is an integer number (534934368).

Almost surely, 2^7125006539 is an apocalyptic number.

7125006539 is a deficient number, since it is larger than the sum of its proper divisors (1433943349).

7125006539 is a wasteful number, since it uses less digits than its factorization.

7125006539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323194.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 7125006539 is about 84409.7538143549. The cubic root of 7125006539 is about 1924.2511543014.

The spelling of 7125006539 in words is "seven billion, one hundred twenty-five million, six thousand, five hundred thirty-nine".